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news.py
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news.py
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# Import general libraries
import pandas as pd
import numpy as np
from datetime import datetime, timedelta
import pprint
import os
# Import dash
import dash
import dash_core_components as dcc
import dash_html_components as html
import dash_bootstrap_components as dbc
from dash.dependencies import Input, Output, State
# Import newsapi
from newsapi import NewsApiClient
try:
from keys import newsapikey # retrieve from local system
newsapi = NewsApiClient(api_key=newsapikey)
except:
newsapikey = os.environ["newapi_key"] # retrieve from Heroku
newsapi = NewsApiClient(api_key=newsapikey)
n_days_ago = 30
date_n_days_ago = datetime.now() - timedelta(days=n_days_ago)
date_now = datetime.now()
def news_update():
all_articles = newsapi.get_everything(
q="dengue singapore",
from_param=date_n_days_ago,
to=date_now,
language="en",
sort_by="publishedAt",
page_size=100,
)
all_articles_title = [
str(all_articles["articles"][i]["title"])
for i in range(len(all_articles["articles"]))
]
all_articles_url = [
all_articles["articles"][i]["url"] for i in range(len(all_articles["articles"]))
]
all_articles_description = [
str(all_articles["articles"][i]["description"])
for i in range(len(all_articles["articles"]))
]
all_articles_date = [
str(datetime.date(pd.to_datetime(all_articles["articles"][i]["publishedAt"])))
for i in range(len(all_articles["articles"]))
]
all_articles_img = [
str(all_articles["articles"][i]["urlToImage"])
for i in range(len(all_articles["articles"]))
]
news_all = []
temp_news = []
col = ["warning", "success", "info", "success"]
col_idx = 0
for i in range(len(all_articles["articles"])):
temp_news.append(
dbc.Col(
dbc.Card(
[
dbc.CardImg(
src=all_articles_img[i],
top=True,
style={
"max-width": "80%",
"max-height": 200,
"margin": "auto",
"display": "block",
"padding-top": "10px",
},
),
dbc.CardBody(
[
html.H4(all_articles_title[i], className="card-title"),
html.P(
all_articles_description[i],
className="card-text",
# style={"fontSize": 16}
),
]
),
dbc.CardFooter(
[
all_articles_date[i],
dbc.Button(
"Source",
color="primary",
href=all_articles_url[i],
style={"float": "right"},
),
]
),
],
color=col[col_idx],
style={"height": 525},
)
)
)
col_idx += 1
if col_idx > 3:
col_idx = 0
if (i + 1) % 3 == 0:
news_all.append(
dbc.Row(temp_news, className="mb-4", style={"padding": "1em"})
)
temp_news = []
return news_all
newsTab = html.Div(news_update())